Newly converted...how do I lower combined chlorine level?

[aylad]

To get your CC to zero, take your chlorine up to about 10 ppm and hold it there until the CC is gone. Otherwise, your numbers look pretty good! Congrats on the conversion, you won't be sorry.

Janet

[medvampire]

To add to Janet
Dirtect sun can also help to lower CC so if you have the pool cover on you might pull it for a day or two.
Steve

[duraleigh]

Adding a little more, I think Janet missed your addition of 4.5 lbs stabilizer....bringing you to about 40-50ppm.

About 3 more gallons of 6% clorox added initially and then holding your FC @ 15ppm will "shock" your pool and get rid of the CC.

Read the stickies at the top of the water forums for more info on shocking.

[Spensar]

Another year, I wouldn't bring my CYA up this late in the season. By spring there won't be much left.

[tmess13]

Thanks for all of your good advice. I'll follow it and letcha know.

[tmess13]

Here are my numbers this morning:

Pool: Above ground vinyl, est. 12,500 gallons
Location: Upstate NY (we typically endure long, below freezing winters with occasional fluke temperature fluctuations)FC: 11.5
FC: 11.5
CC: 1.5
TC: 13
pH: 7.1
Alk: 140
Cal: 140
Cya: 45

It's looking like the perfect day to close my pool today, but I'm concerned with my CC level. Do I need to bring the level to zero before I close it? Also, not sure why the pH went down. You'd think with the additional chlorine that it would have gone up.

Would it harm anything to close the pool as is and rebalance the chemicals in the spring when I open it? Also, what is your opinion on adding Polyquat 60% algecide before I close? I've read that some people use it, while others don't.

Thanks again for your help.

[duraleigh]

Double check your CYA results and repost them